Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Chamber enclosing work during bonding and/or assembly
Patent
1990-01-31
1991-03-05
Ball, Michael W.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Chamber enclosing work during bonding and/or assembly
100211, 156285, 1565833, 249 65, 264102, 425389, B32B 3120
Patent
active
049975110
ABSTRACT:
A method and apparatus for mass producing composite products comprising a novel autoclave having a cylindrical vacuum chamber; a cylindrical compression chamber surrounding the vacuum chamber; a reusable, flexible diaphragm defining the boundary between the chambers; and means for supplying heat and pressure between the diaphragm and the compression chamber. A core or mandrel is wrapped with a fiber-reinforced resin and is placed in the autoclave within the flexible diaphragm. Alternatively, a part layup can be sandwiched between an elastomeric caul and a hard tool by wrapping with expendable shrink tape to accommodate a variety of part shapes having constant or nearly constant cross sections throughout their length. The autoclave is then sealed and evacuated, causing the diaphragm to compress the resin layer against its core or mandrel due to atmospheric or higher pressure in the compression chamber. The autoclave is then heated to cure the resin. Subsequently, the autoclave is unsealed and the finished product is removed, with the autoclave immediately available for reuse.
REFERENCES:
patent: 2477188 (1949-07-01), Hemming
patent: 2737998 (1956-03-01), Meanor et al.
patent: 3964846 (1976-06-01), Bliss
patent: 4126659 (1978-11-01), Blad
patent: 4541891 (1985-09-01), Leatherman
Ball Michael W.
Yoder Michele K.
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